Question

How to find relative atomic mass of hydrogen ?

Answer 1

find the relative ago atomic mass of an atom by adding the number of protons to the number of neutrons. Hydrogen has the relative atomic mass of 1,and carbon -12 has has a relative atomic mass of 12. Isotopes of same element have different number of neutrons, so you need to calculate for one specific isotope.

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Answer 2

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Atomic mass

Atomic mass in an atom or group of an atom is the sum of the masses of protons, neutrons and electrons.

Atomic Mass = No. of protons + No. of neutrons